CommentsView.java

/*
 * Copyright © 2011 Nokia Corporation. All rights reserved.
 * Nokia and Nokia Connecting People are registered trademarks of Nokia Corporation. 
 * Oracle and Java are trademarks or registered trademarks of Oracle and/or its
 * affiliates. Other product and company names mentioned herein may be trademarks
 * or trade names of their respective owners. 
 * See LICENSE.TXT for license information.
 */ 

package com.nokia.example.wordpress.views;

import com.nokia.example.wordpress.components.CommentDrawer;
import com.nokia.example.wordpress.components.List;
import com.nokia.example.wordpress.components.MenuItemCallback;
import com.nokia.example.wordpress.components.OptionsMenu;
import com.nokia.example.wordpress.helpers.ImageLoader;
import com.nokia.example.wordpress.helpers.KeyCodes;
import com.nokia.example.wordpress.networking.Comment;
import com.nokia.example.wordpress.networking.DeleteCommentOperation;
import java.io.IOException;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;

public class CommentsView extends BaseView {

    private List commentsList;
    private Image postIcon;

    CommentsView(Graphics g, int x, int y, int width, int height) {
        super(g, ViewMaster.VIEW_COMMENTS, x, y, width, height);

        haveTabs = true;

        try {
            postIcon = ImageLoader.getInstance().loadImage("/post-icon.png");
        } catch (IOException e) {
        }

        final int listHeight = height - tabsHeight() - Visual.SOFTKEYBAR_HEIGHT;
        final int listY = tabsHeight();
        commentsList = new List(viewMaster, 0, listY, width, listHeight,
                new CommentDrawer(viewMaster, viewMaster.gravatarCache, viewMaster.defaultGravatarIcon));


        // Create options menu
        menu = new OptionsMenu(width, height) {

            {
                addItem("Delete comment", new MenuItemCallback() {

                    public void select() {
                        deleteComment();
                    }
                });
                addExitItem();
            }
        };

        softkey1Label = "Options";
        softkey2Label = "Open";
        softkey3Label = "Exit";
    }

    public void activate() {
        System.out.println("comments activate");
        super.activate();
        commentsList.setData(data.getComments());
    }

    public void draw(int x, int y, int width, int height) {
        System.out.println("comments render");
        if (menu.isVisible()) {
            menu.draw(g);
            return;
        }
        drawTabs();
        commentsList.draw(g);
        drawSoftkeys();
    }

    public void keyPressed(int keyCode) {

        if (menu != null && menu.notifyKeyEvents(keyCode)) {
            // menu used this keycode, let's not use for anything else.
            viewMaster.draw();
            return;
        }

         // update focus in the model
        data.setCurrentCommentIndex(commentsList.focusIndex());

        switch (keyCode) {
            case KeyCodes.MIDDLE_SOFTKEY:
                viewMaster.setView(ViewMaster.VIEW_SINGLECOMMENT);
                return;
            case KeyCodes.RIGHT_SOFTKEY:
                midlet.commandExit();
                break;
            case KeyCodes.DOWN:
                commentsList.focusDown();
                break;
            case KeyCodes.UP:
                commentsList.focusUp();
                break;
            case KeyCodes.LEFT:
                viewMaster.setView(ViewMaster.VIEW_POSTS);
                return;
            default:
                break;

        }

        viewMaster.draw();
    }

    /**
     * Remove comment from the data and refresh view.
     */
    private void deleteComment() {
        Comment comment = data.getCurrentComment();
        data.getComments().removeElement(comment);
        commentsList.setData(data.getComments());
        viewMaster.draw();

        // Fire up the actual deletion on the server side, no listener.
        DeleteCommentOperation op = new DeleteCommentOperation(null, comment);
        op.start();
    }
}